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tl;dr lymphatic nodes go all the way up the back of your brain and into your sinuses. We'd been ripping them out and throwing them away every time we did autopsies or dissections because they were attached to the inside of the skull. Oops.


the back of your brain and into your sinuses

Dural sinuses, not nasal sinuses.

http://en.wikipedia.org/wiki/Dural_venous_sinuses


Thanks for that. I thought 'up the back of your brain' was clear when I wrote it but I suppose sinuses are more often associated with a runny nose.


I think my comment was more for me than you! I first saw sinuses and thought "it runs into your nose?".


> every time we did autopsies or dissections

It follows that we also rip them out when we open the skull to perform surgeries! Quite possibly, they don't grow back.

I hypothesize that some brain injuries due to impact could tear them too.


But how they didn't notice in with MRI or CT scans? Is it because their resolution isn't high enough yet for that?




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